Suffolk police said they also will intensify their patrol of synagogues and temples during the High Holy Days. Deputy Chief Kevin Fallon said the department is "especially sensitive this year" because of possible American military involvement in Syria.

Rosh Hashanah begins at sundown Wednesday and the holiday period ends with Yom Kippur on Sept. 14.

Mangano, speaking at Young Israel of Woodmere, was accompanied by Nassau Police Commissioner Thomas Dale, Rabbi Barry Dov Schwartz, who retired in 2010 from Temple B'nai Shalom in Rockville Centre after 37 years, and others. "While there is no current threat, they just want to be prepared, and I agree 100 percent," Schwartz said of the stepped-up police activity.

Dale noted that Mangano last week had "brought together Jewish leaders and the precinct commanders for their particular areas to establish or re-establish a better working relationship before the holidays."

Mangano reminded those in attendance of the nationwide "See Something, Say Something" anti-terrorism campaign, saying Nassau will be distributing posters throughout the county in high traffic areas. "We are asking residents to help be the eyes and ears for the police department," he said.

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